stealc | 1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 02:10

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General

Target

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe
Size

1.7MB
MD5

a6a5206fd22c5bef02eabdf3152414e3
SHA1

97cdb21c7343613cb4e7b20291fa50d36682d451
SHA256

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b
SHA512

2911bc1f5737bab4221e4a51f7269b3a91e0d5ab1135fc2128df08b9f6caff329b91e38e5ae75471f55664f87b46a977654108b2dc17db8078aadd9c0ab7ef47
SSDEEP

49152:xKh2xSJVBAPuiOyMdUeIPJHNU5Z1+tMuuUWIW:xKbYPuiOTdUeKJtUf1+PuU

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

pid	Process
2656	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

pid	Process
2656	1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe

C:\Users\Admin\AppData\Local\Temp\1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe
"C:\Users\Admin\AppData\Local\Temp\1e55248aeae25b8281871f9771133ee30b88b32e8c44f6ce0e3ac1ca0214da9b.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2656-0-0x0000000001250000-0x00000000018ED000-memory.dmp

Filesize
6.6MB

Download
memory/2656-1-0x0000000077200000-0x0000000077202000-memory.dmp

Filesize
8KB

Download
memory/2656-3-0x0000000001250000-0x00000000018ED000-memory.dmp

Filesize
6.6MB

Download
memory/2656-2-0x0000000001251000-0x0000000001268000-memory.dmp

Filesize
92KB

Download
memory/2656-4-0x0000000001250000-0x00000000018ED000-memory.dmp

Filesize
6.6MB

Download